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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10488820 B1

PDFFull Text
Date of Patent:
Nov. 26, 2019

Filed:

Dec. 15, 2017

Digital holographic image-taking apparatus

Applicant:

Olympus Corporation, Hachioji-shi, Tokyo, JP;

Inventor:

Keigo Matsuo, Tokyo, JP;

Assignee:

OLYMPUS CORPORATION, Tokyo, JP;

Attorney:

Holtz, Holtz & Volek PC

Primary Examiner:

Shan E Elahi

Int. Cl.
CPC ...
G03H 1/04 (2006.01); G03H 1/00 (2006.01); G01N 21/45 (2006.01); G02B 5/18 (2006.01); G02B 5/20 (2006.01); G02B 5/32 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G03H 1/0408 (2013.01); G01N 21/453 (2013.01); G02B 5/1809 (2013.01); G02B 5/201 (2013.01); G02B 5/32 (2013.01); G03H 1/00 (2013.01); G03H 1/041 (2013.01); G03H 1/0443 (2013.01); G03H 1/0465 (2013.01); G02B 6/0035 (2013.01); G03H 2001/0413 (2013.01); G03H 2001/0436 (2013.01); G03H 2001/0447 (2013.01); G03H 2001/0452 (2013.01); G03H 2001/0471 (2013.01); G03H 2222/18 (2013.01); G03H 2222/22 (2013.01); G03H 2223/15 (2013.01); G03H 2223/16 (2013.01); G03H 2223/23 (2013.01);
Abstract

A digital holographic image-taking apparatus includes an illumination portion having a light emission surface for emitting illumination light toward an object, the illumination light having a specific wavelength in a coherent plane waveform; and an image sensor having an pixel array including two-dimensionally arranged pixels, the image sensor capturing an interference pattern generated based on the illumination light having acted on the object, in which the following conditional expression is satisfied: 0.0000001<Z/S<16, where S represents the area of the light emission surface, and Z represents the distance from the light emission surface to the pixel array.

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